Fig. 2

Crescent formation in pathological specimens of lupus nephritis. A Formation of large cellular crescent in the left side of glomerulus, and severe proliferation of cells in the capillaries in the right side of glomerulus with polymorphonuclear cells retention (PASM × 400). B Formation of large fibrocellular crescent in the lower right side of the glomerulus, severe proliferation of cells in the segmental capillaries in the upper right side of the glomerulus, and fibrinoid necrosis in the segmental capillary loop in the lower right side of the glomerulus (MASSON × 400). C Formation of large fibrous crescent in glomerulus, focal segmental glomerulosclerosis in the upper left side of glomerulus (PAS × 400)